TW200509059A - Method and apparatus for performing dithering - Google Patents

Method and apparatus for performing dithering

Info

Publication number
TW200509059A
TW200509059A TW093121708A TW93121708A TW200509059A TW 200509059 A TW200509059 A TW 200509059A TW 093121708 A TW093121708 A TW 093121708A TW 93121708 A TW93121708 A TW 93121708A TW 200509059 A TW200509059 A TW 200509059A
Authority
TW
Taiwan
Prior art keywords
bit data
dithering
filtered
temporal
scale value
Prior art date
Application number
TW093121708A
Other languages
Chinese (zh)
Inventor
Cheon-Ho Bae
Yong-Sub Kim
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of TW200509059A publication Critical patent/TW200509059A/en

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2007—Display of intermediate tones
    • G09G3/2044—Display of intermediate tones using dithering
    • G09G3/2051—Display of intermediate tones using dithering with use of a spatial dither pattern
    • G09G3/2055—Display of intermediate tones using dithering with use of a spatial dither pattern the pattern being varied in time

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Picture Signal Circuits (AREA)
  • Image Processing (AREA)

Abstract

A method and apparatus for dithering may provide filtering M bit data and performing a temporal/spatial compensation based on LSB of the filtered M bit data. The dithering may be performed on a selected frame. M-2 bits of the M bit data may be specified as a reference gray scale value resulting from the filtered M bit data. Temporal compensation may provide adding a weight of '0' or '1' to the reference gray scale value, for example M-2 bit data. Spatial compensation may include horizontal or vertical mirroring, and may be performed to represent whole gray scales without saturation.
TW093121708A 2003-07-26 2004-07-21 Method and apparatus for performing dithering TW200509059A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR10-2003-0051757A KR100520298B1 (en) 2003-07-26 2003-07-26 Method of dithering and Apparatus of the same

Publications (1)

Publication Number Publication Date
TW200509059A true TW200509059A (en) 2005-03-01

Family

ID=34075001

Family Applications (1)

Application Number Title Priority Date Filing Date
TW093121708A TW200509059A (en) 2003-07-26 2004-07-21 Method and apparatus for performing dithering

Country Status (4)

Country Link
US (1) US7233339B2 (en)
KR (1) KR100520298B1 (en)
NL (1) NL1026688C2 (en)
TW (1) TW200509059A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102572498A (en) * 2012-02-10 2012-07-11 福建华映显示科技有限公司 Image processing method and image processing device

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US7768673B2 (en) * 2005-09-12 2010-08-03 Kabushiki Kaisha Toshiba Generating multi-bit halftone dither patterns with distinct foreground and background gray scale levels
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US7746303B2 (en) * 2005-11-17 2010-06-29 Honeywell International Inc. Method and apparatus for extending the color depth of displays
KR100745979B1 (en) * 2006-01-04 2007-08-06 삼성전자주식회사 Apparatus and method for dithering for multitoning
US8711925B2 (en) 2006-05-05 2014-04-29 Microsoft Corporation Flexible quantization
EP1862995A1 (en) * 2006-05-31 2007-12-05 Texas Instruments France S.A. Method and apparatus for spatial and temporal dithering
US8064118B2 (en) * 2006-07-27 2011-11-22 Silicon Quest Kabushiki-Kaisha Control system for micromirror device
TWI350501B (en) * 2006-09-20 2011-10-11 Novatek Microelectronics Corp Method for dithering image data
US8238424B2 (en) * 2007-02-09 2012-08-07 Microsoft Corporation Complexity-based adaptive preprocessing for multiple-pass video compression
KR100885917B1 (en) * 2007-03-16 2009-02-26 삼성전자주식회사 Dither system which can disperse effectively error using linear transformer and method adapted to the same
US20090066719A1 (en) * 2007-09-07 2009-03-12 Spatial Photonics, Inc. Image dithering based on farey fractions
US8750390B2 (en) * 2008-01-10 2014-06-10 Microsoft Corporation Filtering and dithering as pre-processing before encoding
US8160132B2 (en) 2008-02-15 2012-04-17 Microsoft Corporation Reducing key picture popping effects in video
US8897359B2 (en) 2008-06-03 2014-11-25 Microsoft Corporation Adaptive quantization for enhancement layer video coding
US9571856B2 (en) 2008-08-25 2017-02-14 Microsoft Technology Licensing, Llc Conversion operations in scalable video encoding and decoding
KR101035579B1 (en) * 2008-09-05 2011-05-19 매그나칩 반도체 유한회사 Method for dithering and apparatus for the same
KR101073266B1 (en) * 2010-02-11 2011-10-12 삼성모바일디스플레이주식회사 Organic Light Emitting Display Device and Driving Method Thereof
US8593691B2 (en) * 2010-11-18 2013-11-26 Xerox Corporation Method for achieving higher bit depth in tagged image paths
KR20130109815A (en) * 2012-03-28 2013-10-08 삼성디스플레이 주식회사 Display apparatus
US9583072B2 (en) * 2014-03-26 2017-02-28 Ati Technologies Ulc Spatial dithering for a display panel
CN106328036B (en) * 2016-08-26 2019-06-04 南京巨鲨显示科技有限公司 A kind of display equipment and the grayscale extended method suitable for showing equipment
CN113590853A (en) * 2021-07-13 2021-11-02 深圳市洲明科技股份有限公司 Gray scale self-adaptive expansion method, FPGA system, device and medium

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US6094187A (en) * 1996-12-16 2000-07-25 Sharp Kabushiki Kaisha Light modulating devices having grey scale levels using multiple state selection in combination with temporal and/or spatial dithering
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102572498A (en) * 2012-02-10 2012-07-11 福建华映显示科技有限公司 Image processing method and image processing device

Also Published As

Publication number Publication date
US7233339B2 (en) 2007-06-19
KR20050012623A (en) 2005-02-02
NL1026688C2 (en) 2006-09-14
US20050021579A1 (en) 2005-01-27
KR100520298B1 (en) 2005-10-13
NL1026688A1 (en) 2005-02-01

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